[GEM-dev] Oculus Rift distortion/support

[Cyrille Henry]

hello,

one have to use shader in order create the image distortion.

i think oculus should provide standard shader that you have to insert in your rendering process.

the only problem is that you have to do 2 rendering : one for each eye.
The best solution is to do a 3 pass rendering :
1st : left eye view without distortion, rendered in a frame buffer
2nd : right eye view (no distortion / framebuffer)
3rd : using the 2 previous texture and a shader, render the final image

cheers
c


Le 25/07/2013 12:04, Michael Mihocic a écrit :
> Dear list,
>
> we are using GEM with a head-mounted-display to present a virtual world to subjects performing acoustic localization experiments.
>
> Now we plan to switch from our current HMD to Oculus Rift (an upcoming virtual reality head-mounted display). Therefore we need to modify our image and add (asymetric) barrel distortion to the represented image. (The image distortion is compensated by the lenses in Oculus Rift.)
>
> My questions now:
> - Is there an easy solution to implement barrel distortion to the rendered window in GEM?
> - Does anybody of you already have some experience with GEM together with Oculus Rift?
>
> Since attachments should be avoided in this list, I do not send any example pictures of the distortion or our current presented world. If you are interested you can either contact me and I can send you some screenshots, or you can google for example images/videos of Oculus Rift distortion.
>
> Thanks in advance and best regards, Michael
>